rworldmap (version 1.3-8)

gridCountriesNumeric: A gloabl half degree grid specifying the country at each cell

Description

A grid covering the globe at half degree resolution, specifying the country (UN numeric code) at each cell.

Format

The format is:

 Formal class 'SpatialGridDataFrame'
[package "sp"] with 6 slots ..@ data :'data.frame': 259200 obs. of 1
variable: .. ..$ country.asc: num [1:259200] NA NA NA NA NA NA NA NA NA NA
...  ..@ grid :Formal class 'GridTopology' [package "sp"] with 3 slots .. ..
..@ cellcentre.offset: num [1:2] -179.8 -89.8 .. .. ..@ cellsize : num [1:2]
0.5 0.5 .. .. ..@ cells.dim : int [1:2] 720 360 ..@ grid.index : int(0) ..@
coords : num [1:2, 1:2] -179.8 179.8 -89.8 89.8 .. ..- attr(*,
"dimnames")=List of 2 .. .. ..$ : NULL .. .. ..$ : chr [1:2] "coords.x1"
"coords.x2" ..@ bbox : num [1:2, 1:2] -180 -90 180 90 .. ..- attr(*,
"dimnames")=List of 2 .. .. ..$ : chr [1:2] "coords.x1" "coords.x2" .. ..
..$ : chr [1:2] "min" "max" ..@ proj4string:Formal class 'CRS' [package
"sp"] with 1 slots .. .. ..@ projargs: chr " +proj=longlat +datum=WGS84
+ellps=WGS84 +towgs84=0,0,0" 

Details

Uses a simple grid map defining a single country identity for each half degree cell. (sp, SpatialGridDataFrame), used by the function aggregateHalfDegreeGridToCountries()

References

http://www.iiasa.ac.at/Research/GGI/DB/

Examples

data(gridCountriesNumeric)